Helmet bell



FIG. 1 is a left side elevational view of the helmet bell of my design.

FIG. 2 is a right side elevational view of the helmet bell.

FIG. 3 is a top plan view of the helmet bell.

FIG. 4 is a bottom plan view of the helmet bell.

FIG. 5 is a front elevational view of the helmet bell; and,

FIG. 6 is a rear elevational view of the helmet bell. 

The ornamental design of a helmet bell, as shown and described. 